505305461 has 4 divisors (see below), whose sum is σ = 505395072. Its totient is φ = 505215852.

The previous prime is 505305439. The next prime is 505305473. The reversal of 505305461 is 164503505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505305461 - 2⁶ = 505305397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505305481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35735 + ... + 47828.

It is an arithmetic number, because the mean of its divisors is an integer number (126348768).

Almost surely, 2^505305461 is an apocalyptic number.

It is an amenable number.

505305461 is a deficient number, since it is larger than the sum of its proper divisors (89611).

505305461 is an equidigital number, since it uses as much as digits as its factorization.

505305461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89610.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 505305461 is about 22479.0004448596. Note that the first 3 decimals coincide. The cubic root of 505305461 is about 796.4979528900.

Adding to 505305461 its reverse (164503505), we get a palindrome (669808966).

The spelling of 505305461 in words is "five hundred five million, three hundred five thousand, four hundred sixty-one".